Washing your roof regularly ensures that the structure of your home is protected. However, algae and debris on your roof's bottom and top layers can accumulate over time, leading water to seep into the shingles. This buildup can cause spots on your roof to peel, bubble, or degrade faster than the rest of the roof. The darker and dirtier these spots appear, the more quickly damage occurs.


How To Clean Your Roof
Sometimes a thorough scrub with household bleach is all that's required to remove unattractive algae and moss development on your roof. The American Roofing Manufacturers Association recommends a 1:1 water-to-bleach ratio for a complete roof cleaning. Avoid applying too much pressure when cleaning your roof since this might harm the asphalt shingles.
After leaving it on your roof for 20 minutes, one can wash the surface with clean water. A few rain showers should be enough to remove all algae left on the roof. The person cleaning your roof also might use a leaf blower to remove any leftover pieces of moss.